# Some pressure concepts i don't understand

by benedict9999
Tags: concepts, pressure
 P: 4 1. The problem statement, all variables and given/known data The pressure at 10 m below the surface of the ocean is about 2.00×10^5 Pa. Which of the following statements is true? a. The weight of a column of seawater 1 m^2 in cross section and 10 m high is about 2.00×10^5 N. b. The weight of a column of seawater 1 m^2 in cross section and 10 m high plus the weight of a column of air with the same cross section extending up to the top of the atmosphere is about 2.00×10^5 N. c. The weight of 1 m^3 of seawater at 10 m below the surface of the ocean is about 2.00×10^5 N. d. The density of seawater is about 2.00×10^5 times the density of air at sea level. I may sound a bit greedy but if you can please explain why it is that and why others aren't right
HW Helper
Thanks
P: 26,148
Hi benedict9999! Welcome to PF!
 Quote by benedict9999 I may sound a bit greedy but if you can please explain why it is that and why others aren't right
No, you first!

Tell us which one you think it is, and why.